Part numbers have been posted by gr7 a while back.
The cambelt kit contains the belts and the tensioners.
You need the aux belt as well that a seperate part
Water pump hum its a risk don't chnage it and it might leak/fail if not it might last forever.
You also need the cam end seals there only cheap though.
buypartsby.co.uk have a contitech (made by Continental) timing belt kit for my 2001 1.2 16v. for £41 plus vat. Cheap as chips
You need the tensioners as well make sure you chnage them as they fail. There a few places sell just the belt.
Im not comparing the two. Both Renault and my local accessory shop wanted £100, more than double the price of buypartsby. Maybe you 172/182 owners can get the same sort of saving?
Maybe the belt kits don't have the same stuff in them. I can get 1.2 and 1.5 dci cambelts for £12 but there nothing else with them and I woulnd't trust them.
£140 the cambelt for the 172/182 is which is good value IMO.